索风营水电站大坝碾压混凝土入仓特点

Go-downing Feature of Rolling-compacting Concrete for Dam of Suofengying Hydropower Station

索风营水电站大坝位于“U”形河谷之中,坝肩开挖后的边坡坡比为1∶0.1或1∶0.2,属百m级高陡边坡。根据坝址区地形特点及对外交通条件,该工程大坝碾压混凝土入仓采用了汽车直接入仓、汽车+皮带机+仓内汽车转料、汽车+真空溜槽+仓内汽车转料3种入仓方式。本文对其入仓布置特点作一介绍,以望给其他工程施工作一借鉴。

The dam of Suofengying Hydropower Station is located on a U-shape valley. The sides after abutments were excavated belong to high steep one with height more than 100 m, and their ratio of slope is 1 ： 0. 1 or 1 ： 0. 2. According to topographic features of the dam area and traffic conditions, three methods for go-downing of rolling-compacting concrete for the dam of the project were adopted, these are directly go-downing by auto - truck, go- downing by auto-truck ＋ belt conveyor ＋ truck on the top of dam or by auto-truck ＋ vacuum chute ＋ truck on the top of dam. The writer introduces whole layout features of go-downing, and hopes these methods could be as reference for construction of other project.